KR20140031358A - Mobile communication terminal with radiat-heat sheet - Google Patents

Abstract

In various embodiments of the present invention, disclosed is a heat radiant mobile communication terminal. The disclosed mobile communication terminal includes: a display module; a rear cover; an internal support structure which is located between the display module and the rear cover and includes a first surface toward the display module and a second surface toward the opposite side of the display module; a first heat radiation sheet which is located between the first surface of the support structure and the display module; a printed circuit board which is located between the first heat radiation sheet and the first surface of the support structure; and a second heat radiation sheet which is located between the second surface of the support structure and the rear cover.

Description

Mobile communication terminal with heat dissipation sheet {MOBILE COMMUNICATION TERMINAL WITH RADIAT-HEAT SHEET}

Various embodiments of the present invention relate to a heat dissipation sheet mounted in a mobile communication terminal, and more particularly, to a mobile communication terminal having an antenna.

In general, a mobile communication terminal is equipped with a battery pack in the main body to recharge. In addition, the mobile communication terminal is configured to be detachable cover on the bottom of the main body, after removing the cover from the mobile communication terminal, and after removing the battery pack mounted on the mobile communication terminal to recharge the battery pack in the charger. Since the bottom or cover of the mobile communication terminal is a place where the user's hand directly touches the mobile communication terminal, the user can feel the heat generated by the mobile communication terminal.

On the other hand, due to the slim body and the use of a high-end AP (Application Processor) in the mobile communication terminal, the heat generation problem is increasing. As a heat generating source of the mobile communication terminal, a main board on which various electronic components are mounted is a cause of heat generation, and in particular, an AP mounted on the main board is an important heat generating source.

In addition, mobile communication terminals, which are becoming more and more common, are capable of bidirectional communication in a near-contact manner in accordance with the installation of a near field communication (NFC) antenna. Compared with other methods such as 'Bluetooth' or 'ZigBee', NFC antenna has the advantage of slow data transmission speed but short communication setup time and small recognition malfunction. It is being developed and applied to various fields. The mobile terminal equipped with NFC antenna is used as a smart card such as electronic money, electronic wallet, electronic ticketing, door key, ID card, etc., and can share or exchange business cards, phone numbers, photos, music, etc. with acquaintances.

An NFC antenna is mounted on a predetermined portion of a mobile communication terminal for a smart function, and is mainly mounted inside a mobile communication terminal, a battery pack, or a battery cover in consideration of mountability.

Due to the slimming of the main body of the mobile communication terminal and the use of a high specification AP (Application Processor), the heat generation problem of the mobile communication terminal is increasing. Furthermore, when the heat generating part of the mobile communication terminal is analyzed by the thermal imaging camera, it can be seen that a large temperature difference occurs in the main body of the mobile communication terminal at the interface between the main board part and the battery pack part. The main board area of the mobile communication terminal generates a lot of heat, and the battery pack area can be confirmed that the temperature is relatively low.

Therefore, the heat must be transferred toward the battery pack area, the NFC antenna is mounted inside the battery pack, it may be difficult to apply a heat dissipation sheet for transferring heat to the inner surface of the battery cover due to the performance degradation of the NFC antenna. For this reason, the heat dissipation sheet may be applied outside the battery area to limit the diffusion of heat.

As a result, in the related art, in order to effectively disperse heat when applying the heat dissipation sheet, it is important to widen the heat dissipation sheet area as much as possible, and there may be difficulty in expanding the heat dissipation sheet due to performance degradation of the NFC antenna.

Accordingly, various embodiments of the present disclosure can reduce heat generation of a mobile communication terminal by applying and securing a maximum heat dissipation sheet area without deteriorating performance of an antenna mounted in a mobile communication terminal or a removable battery pack.

In addition, various embodiments of the present disclosure may reduce heat generation of the mobile communication terminal by transferring heat of the heat generating unit toward the side where the antenna is not disposed by using the heat dissipation connecting unit.

In order to solve the above problems, a mobile communication terminal according to various embodiments of the present invention is a display module; Rear cover; An inner support structure disposed between the display module and the rear cover and including a first surface facing the display module and a second surface facing in the opposite direction to the display module; A first heat dissipation sheet disposed between the first surface of the support structure and the display module; A printed circuit board positioned between the first heat dissipation sheet and the first surface of the support structure; And a second heat dissipation sheet disposed between the second surface and the rear cover of the support structure.

In addition, the mobile communication terminal according to an embodiment of the present invention, the protective cover of the mobile communication terminal, the first cover to cover the first surface of the mobile communication terminal; And a second cover connected to the first cover and provided on the second surface of the mobile communication terminal when the protective cover is coupled to the mobile communication terminal and configured to cover a battery accommodating space of the mobile communication terminal. The second cover may include a heat dissipation sheet covering a portion of one surface of the second cover.

In addition, various embodiments of the present disclosure provide a mobile electronic device comprising: a display module; Internal support structure; An inner bracket positioned between the display module and the inner support structure, the inner bracket including a first surface facing the display module and a second surface facing the display module; A first heat dissipation sheet disposed between the first surface of the inner bracket and the display module; A printed circuit board positioned between the second surface of the inner bracket and the support structure; And a second heat dissipation sheet disposed between the inner printed circuit board and the inner support structure.

In addition, a mobile communication terminal according to various embodiments of the present disclosure includes a heat source disposed in the terminal body; A battery pack configured to be detachable from the terminal body and disposed at a position spaced apart from the heat source; An antenna mounted in the battery pack first region; A battery cover detachable from the terminal body; And a battery cover disposed on the battery cover and overlapping with the heat generating source and not overlapping with the antenna, and transferring the heat of the heat generating source toward a second region of the battery pack that is relatively low in temperature compared with the heat generating source and does not have the antenna. And a heat dissipation unit having a heat dissipation connection unit.

In addition, a battery cover of a mobile communication terminal including an antenna according to various embodiments of the present disclosure is provided on one surface thereof, is disposed so as not to overlap with the antenna, and has a relatively low temperature of heat transferred from the mobile communication terminal. A heat dissipation unit emitting to one area; And a heat dissipation connection part extending from the heat dissipation part and dissipating heat transferred from the mobile communication terminal to a second area in a direction different from the first area.

In addition, a battery pack according to various embodiments of the present disclosure may include a battery pack divided into first and second regions; An antenna provided in the first region; One or a plurality of connecting antennas extending from the antenna and crossing the second area; And a battery protection circuit board to which an end of the connection antenna is connected.

As described above, various embodiments of the present disclosure may lower the temperature of the heat generating source by transferring the heat of the heat generating source of the mobile communication terminal to a relatively low temperature region, for example, a battery pack in which an antenna is not mounted.

1 is a perspective view showing a front appearance configuration of a mobile communication terminal.
2 is a perspective view illustrating a rear exterior configuration of a mobile communication terminal.
3 is an exploded perspective view illustrating a mobile communication terminal provided with a heat dissipation sheet according to various embodiments of the present disclosure.
4 is a front view of a mobile communication terminal equipped with a short range wireless communication antenna according to a conventional embodiment, and FIG. 4 (a) shows a state in which a battery pack is mounted by removing a battery cover of the mobile communication terminal. 4B is a view illustrating an inner surface of the battery cover that is removed.
5 is a cross-sectional view schematically illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to a conventional embodiment.
FIG. 6 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 6A illustrates a state in which a battery pack of the mobile communication terminal is removed and a battery pack is installed. 6B is a view showing the inner surface of the removed battery cover.
7 is a schematic cross-sectional view of a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure.
8 is a perspective view illustrating a battery pack equipped with a short range wireless communication antenna according to various embodiments of the present disclosure.
9 is a perspective view illustrating a state in which a protective cap of a battery pack to which a short range wireless communication antenna is mounted according to various embodiments of the present disclosure is deleted.
FIG. 10 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 10 (a) illustrates a state in which a battery pack is removed by removing a battery cover of the mobile communication terminal. 10 (b) is a view showing the inner surface of the removed battery cover.
11 is a perspective view illustrating a battery pack equipped with a short range wireless communication antenna device according to various embodiments of the present disclosure.
12 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 12A illustrates a state in which a battery pack of the mobile communication terminal is removed and a battery pack is installed. 12 (b) is a view showing the inner surface of the removed battery cover.
13 is a perspective view illustrating a battery pack to which a short range wireless communication antenna device according to various embodiments of the present disclosure is mounted.
14 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 14A illustrates a state in which a battery pack of the mobile communication terminal is removed and a battery pack is installed. (B) is a figure which shows the inner surface of the removed battery cover.
15 is a perspective view illustrating a battery pack equipped with a short range wireless communication antenna device according to various embodiments of the present disclosure.
FIG. 16 is a front view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to a conventional embodiment, and FIG. 16A illustrates a state in which a battery pack is mounted by removing a battery cover of the mobile communication terminal. FIG. 16B is a diagram illustrating an inner surface of the removed battery cover. FIG.
17 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 17A illustrates a state in which a battery pack of the mobile communication terminal is removed and a battery pack is installed. FIG. 17B is a view showing the inner surface of the removed battery cover.
18 is a table illustrating a temperature distribution of each mobile communication terminal to which a heat dissipation sheet is attached according to various embodiments.

Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the contents described in the accompanying drawings. However, the present invention is not limited to or limited by the exemplary embodiments. Like reference numerals in the drawings denote members performing substantially the same function.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, in describing embodiments of the present invention, the term “substantially” does not need to accurately achieve the recited characteristics, parameters, or values, and is known to those skilled in the art, including tolerances, measurement errors, measurement accuracy limits, and the like. Deviations or variations involving other factors, or to the extent that the characteristics do not exclude the effect to be provided.

1 is a perspective view showing a front surface of a mobile communication terminal. 2 is a perspective view illustrating a rear surface of a mobile communication terminal. The mobile communication terminal may be a smart phone or a tablet PC. The configuration of a mobile communication terminal such as a smart phone will be described with reference to FIGS. 1 and 2. The touch screen 11 is disposed at the front center of the mobile communication terminal 10. The touch screen 11 is largely formed to occupy most of the front surface of the mobile communication terminal 10. 1 illustrates an example in which a main home screen is displayed on the touch screen 11. The main home screen is the first screen displayed on the touch screen 11 when the mobile communication terminal 10 is turned on. In addition, when the mobile communication terminal 10 has different home screens of several pages, the main home screen may be the first home screen of the home screens of the several pages. The home screen may display shortcut icons for executing frequently used applications, a main menu switch key, time, weather, and the like. The main menu switching key displays a menu screen on the touch screen 190. In addition, a status bar 11d indicating a state such as a battery charging state, a received signal strength, and a current time may be formed on the top of the touch screen 11. A home button 11a, a menu button 11b, and a back button 11c may be formed below the touch screen 11.

The home button 11a displays a main home screen on the touch screen 11. For example, when the home button 11a is touched while a home screen or a menu screen different from the main home screen is displayed on the touch screen 11, the main home screen may be displayed on the touch screen 11. have. In addition, when the home button 11a is touched while applications are executed on the touch screen 11, a main home screen may be displayed on the touch screen 11. In addition, the home button 11a may be used to display recently used applications on the touch screen 11 or to display a task manager. The menu button 11b provides a connection menu that can be used on the touch screen 11. The connection menu may include a widget addition menu, a background screen change menu, a search menu, an edit menu, a configuration menu, and the like. The back button 11c may display a screen executed immediately before the currently running screen or terminate the most recently used application.

The first camera 12a, the illuminance sensor 12b, and the proximity sensor 12c may be disposed in the upper front region of the mobile communication terminal 10. A second camera 13a, a flash 13b, and a speaker 13c may be disposed on the rear surface of the mobile communication terminal 10. If the mobile communication terminal 10 is configured to be detachable from the battery pack, the bottom of the mobile communication terminal 10 may be a removable battery cover 15.

In the mobile communication terminal to be described below, the battery pack is detachably configured, and the battery cover is configured to be coupled to and detached from the mobile communication terminal. Hereinafter, with reference to the drawings, a configuration of a heat radiation antenna device, a cover having the same, a battery pack and a mobile communication terminal according to various embodiments of the present invention will be described.

3 is an exploded perspective view illustrating a mobile communication terminal provided with a heat dissipation sheet according to various embodiments of the present disclosure. Referring to FIG. 3, the mobile communication terminal (hereinafter referred to as a terminal) according to the present embodiment includes a display module 1000 disposed at the front of the terminal and a rear cover 1100 disposed at the rear of the terminal. A printed circuit board (PCB) for mounting various electronic components between the display module 1000 and the rear cover 1100, an internal support structure 1200, and at least one heat dissipation sheet 1400 and 1500 are included.

In addition, the internal support structure 1200 includes a first surface 1220 facing the display module 1000 and a second surface 1210 facing in the opposite direction toward the display module 1000. The first surface 1220 is a rear surface of the inner support structure, and the second surface 1210 is a front surface of the inner support structure. The inner support structure 120 is a kind of rear case, and may be a basic frame supporting various mounted electronic components. The inner support structure 1200 may include one or a plurality of metal patterns 1513 and 1610 and may include a space for accommodating a component including at least one metal pattern. At least one metal pattern included in the internal support structure 1200 may be configured as an antenna pattern, and the component may be a battery pack 1600. The metal pattern may be provided in the battery pack 1600, and the battery pack 1600 includes a metal pattern 1610 on one surface. The metal pattern 1610 may be a near field communication (NFC) antenna.

The internal support structure 1200 may further include an internal bracket 1300 that supports a printed circuit board (PCB) and supports various electronic components. A printed circuit board (PCB) may be disposed between the inner support structure 1200 and the inner bracket 1300. The internal support structure 1200, the printed circuit board (PCB), and the internal bracket 1300 may be combined in a vertical stack structure to support various electronic components. The inner support structure 1200, the inner bracket 1300, and the printed circuit board PCB may include openings 1215, 1310, and 1315 for placing the battery pack 1600 therein.

The heat dissipation sheet may include first and second heat dissipation sheets 1400 and 1500. The first heat dissipation sheet 1400 may be disposed between the display module 1000 and the first surface 1220 of the internal support structure to have a shape in which heat transferred from a heat source is transferred to a relatively low temperature region. The heat regarded as a heat generating source in the terminal may be an AP or an LED disposed on a printed circuit board (PCB), and in particular, the AP may be regarded as the hottest heat generating source.

In addition, at least a portion of the second heat dissipation sheet 1500 may be located between the second surface 1210 and the rear cover 1100 of the support structure. The second heat dissipation sheet 1500 is attached to or embedded in the rear cover 1100, and may be disposed not to overlap the metal pattern 1610. The second heat dissipation sheet 1500 may include a first portion 1510 at a position corresponding to the heating element, and the first portion 1510 may not overlap at least at a position corresponding to the metal pattern 1610. It may extend in the second heat dissipation sheet. The extended second portion 1520 transfers heat transferred from the heating element to one surface of the battery pack 1600 that is not provided with a component, for example, a metal pattern 1610.

At least one of the first heat dissipating sheet 1400 or the second heat dissipating sheet 1500 may include natural graphite particles, compressed particles of exfoliated graphite, artificial graphite particles, and artificial graphite particles. graphite particles), copper, or graphene particles, CNTs, or graphene hybrids.

Hereinafter, in describing a mobile communication terminal having a heat dissipation sheet according to various embodiments of the present disclosure, for convenience of description, it will be described in comparison with a mobile communication terminal having a conventional heat dissipation sheet.

18 is a table illustrating a temperature distribution of a mobile communication terminal with a heat dissipation sheet according to various embodiments. Referring to FIG. 18, a heat source such as an AP is disposed in the left region of the mobile communication terminal (see FIG. 3A), and after mounting various heat dissipation sheets on the inner surface of the battery cover detachable from the mobile communication terminal, This is an experimental table showing the temperature of the heating source and the temperature distribution.

If the heat dissipation sheet is not attached to the battery cover (No sheet), it can be seen that the temperature of the heat generating source is the highest (52.1 ° C.). In addition, when the heat dissipation sheet is attached to the battery cover (Case # 1 to Case # 4), when heat of the heat generating source is transferred to the battery pack using the heat dissipation connection part (Case # 3), the temperature of the heat generating part (rear temperature) The lowest (47.8 ° C.) can be seen.

Referring to FIG. 18, a description will be given of a heat dissipating mobile communication terminal according to various embodiments of the present disclosure.

4 is a front view illustrating a mobile communication terminal (hereinafter, referred to as a terminal) equipped with a short-range wireless communication antenna according to a conventional embodiment. FIG. 4A illustrates a battery cover 32 of the mobile communication terminal. 4 illustrates a state in which the battery pack 31 is mounted, and FIG. 4B illustrates a heat dissipation part 35 mounted on the inner surface 320 of the battery cover 32. 4 is a cross-sectional view schematically illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to a conventional embodiment.

As shown in FIG. 4 and FIG. 5, if the battery pack 31 is detachably configured at the terminal, the detachable battery cover 32 may be configured at the bottom of the terminal body. For convenience of description, the detachable structure of the battery cover 32 will be omitted. Although not shown, the detachable structure of the battery cover 32 mentioned above is composed of a plurality of protrusions and a combination of grooves.

As shown in FIG. 4A, when the battery cover 32 is removed from the terminal 30, a state in which the battery pack 31 is mounted is shown. The battery pack 31 is seated in a battery slot provided on the inner surface 300 of the terminal, and is electrically connected to the battery connector 36 to supply power. In the left region of the battery pack 31, a heating source 34 mounted on a main board (mounted to be stacked inside the bottom of the terminal), for example, an AP, is located, and an upper portion of the battery pack 31 is a camera ( c) and the LED and the socket s provided in the flash f are located. An example of the heating source 34 may be, for example, an AP 34, an LED (f), a camera (c) device, or the like, but relatively the AP 34 is regarded as the hottest heating source inside the terminal. Can be. Therefore, the location where the AP 34 is located in the terminal 30 is the hottest area and can be regarded as a hot spot.

Specifically, the heat generating source 34 is positioned in the left region approximately at the center of the terminal 30, and the battery pack 31 is positioned at the right side of the terminal 30 so as to be spaced apart from the heat generating source 34, and the camera c and LED of the flash (f) or the socket (s) and the like is located. The heat generating source 34 is located in the left region of the terminal 30 and is located close to the battery connector 36. The heating source 34 should be located close to the camera c, the flash f or the battery connector 36 in the left region, so that the heat generating unit 34 may be easily interlocked with each other and power may be easily supplied. 34 is preferably disposed in close proximity to the battery connector 36. In addition, the camera (c), flash (f) or card socket (s), etc. may be disposed not far from the heat generating source (34).

In order to provide an antenna function to the terminal, the antenna 33 and the heat dissipation unit 35 may be configured. When the antenna 33 is a near field communication (NFC) antenna, the near field communication antenna 33 may be provided at a predetermined position on the top surface 310 of the battery pack 31. When the short range wireless communication antenna 33 is provided in the battery pack 31, the short range wireless communication antenna 33 may be disposed near the heat generating unit 34. That is, when the battery pack 31 is roughly divided into an upper region and a lower region, a short range wireless communication antenna 33 may be mounted in the upper region of the battery pack 31.

The heat dissipation part 35 is mounted on the inner surface of the battery cover 32 (the surface facing the terminal bottom 300 when combined with the terminal) 320 to lower the temperature of the heat generating part 34. When the battery cover 32 is coupled to the bottom surface 300 of the terminal 30, the upper heat unit 35 is disposed to overlap with the heat source 34, so that the heat source 34 is formed by the heat radiating unit 35. By dissipating heat in a direction away from, the temperature of the heat generating source 34 is lowered, and the overall terminal temperature can be lowered. Meanwhile, since the heat dissipation part 35 includes a metallic material having excellent thermal conductivity, for example, copper (Cu), the heat dissipation part 35 may be disposed not to overlap with the antenna 33.

If the heat dissipation part 35 is disposed to overlap the antenna 33, the performance of the antenna 33 may be degraded. When the temperature of the heating source 34, for example, the AP rises, the main function of the terminal may decrease, and the performance of the terminal may be degraded. It is necessary to lower the temperature of the heat generating source 34 further. In the future, as the terminal 30 is highly specified, the heat generation problem of the AP will become more prominent and may affect the performance of the mobile communication terminal. In FIG. 3B, reference numeral 321 denotes a camera opening, reference numeral 322 denotes a flash opening, and g denotes a battery detachable groove.

Hereinafter, with reference to the accompanying drawings will be described the configuration of an antenna, a battery pack and a mobile communication terminal having the same according to various embodiments of the present invention. 6 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure. 6B is a view showing the inner surface of the removed battery cover. 7 is a schematic cross-sectional view of a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure.

6 and 7, the battery pack 41 is seated in a battery slot provided in the bottom surface 400 of the terminal 40, and electrically connected to the battery connector 46, thereby supplying power to the terminal. To supply. In the left region of the battery pack 41, a heating source 44 mounted on a main board B (shown in FIG. 6), for example, an AP is located, and an upper portion of the battery pack 41 includes a camera c, LED or card socket (s) provided in the flash (f) is located. The heating source 44 may be, for example, an AP, an LED, a camera element, or the like, but the AP may be regarded as the hottest heating source. Therefore, the location where the AP is located in the mobile communication terminal is the hottest area and can be regarded as a hot spot.

The heat generating source 44 is located in the left area around the center of the terminal body 40, and the battery pack 41 is located in the right area so as to be spaced apart from the heating source 44, and the camera c and the LED are located in the upper area. Or a card socket. The heat generating source 44 is located near the battery connector 46 in the left region of the terminal body. The heat source 44 should be located close to the camera (c), flash (f) or the battery connector 46 in the left area, so that the interworking is easily progressed, and the power supply is easy, so that the main The heating unit 44 on the board is preferably disposed in close proximity to the power-intensive electronic components.

In addition, in order to provide an antenna function to the mobile communication terminal 40, the antenna 43 and the heat radiating unit 45 may be configured. The antenna 45 mounted on the mobile communication terminal 40 may be thin, and may be a near field communication (NFC) antenna made of a flexible material or a wireless charging antenna. When the antenna 43 is a short range wireless communication antenna, the short range wireless communication antenna may or may not be provided on an upper surface of the battery pack 41. When the short range wireless communication antenna 43 is not provided in the battery pack 41, the short range wireless communication antenna 43 may be provided in a predetermined area of the bottom surface 400 of the terminal body 40.

According to various embodiments of the present disclosure, when the short range wireless communication antenna 43 is provided in the battery pack 41, the short range wireless communication antenna 43 is disposed at a distance from the heat generating unit 44. That is, when the battery pack 41 is roughly divided into a first region (lower region) and a second region (upper region), the near field communication antenna 43 is disposed in the lower region of the battery pack 41. do. The first region is located relatively far from the heat generating source 44 compared to the second region, and the second region is located relatively near to the first region from the heat generating source 44. The antenna 43 is disposed in the first region, and further includes a connecting antenna 430 to be connected to the battery connector 46.

As shown in FIG. 6B, a heat dissipation part 45 is attached to an inner surface of the battery cover 42 to lower the temperature of the heat generating part 44. When the battery cover 42 is coupled to the terminal body 40, the heat dissipation part 45 is disposed to overlap with the heat generating source 44, so that the heat dissipation part 45 is arranged in a direction away from the heat generating source 44 by the heat dissipating part 45. By emitting the lowering of the temperature of the heat generating source 44, it is possible to lower the temperature of the terminal body 40 as a whole. Since the heat dissipation part 45 includes a metallic material having excellent thermal conductivity, for example, copper, the heat dissipation part 45 is disposed so as not to overlap the antenna 43, and heats the heat to a relatively low temperature region compared to the heat generating source 44. It is provided with a heat dissipation connection portion 450. An example of the low temperature region may be an area 420 that does not overlap the connection antenna 430 in the second area of the battery pack 41. That is, the heat dissipation connector 450 absorbs heat transferred from the heat generating source 44 and discharges the heat to the region 420 of the battery pack having a relatively low temperature. The heat dissipation connection part 450 may be made of the same material as the heat dissipation part 45 and may have a sheet shape. The heat dissipation part 45 and the heat dissipation connection part 450 may include natural graphite particles, compressed particles of exfoliated graphite, artificial graphite particles, and copper. Or one or more of graphene particles, CNTs, and graphene hybrids. The heat dissipation unit and the heat dissipation connection unit to be described below may include the material.

As will be described below, the heat dissipation connector 450 provides the effect of lowering the temperature of the heat source 44. 18, it can be seen that the rear temperature of the heating source is the lowest.

8 is a perspective view illustrating a battery pack equipped with a short range wireless communication antenna according to various embodiments of the present disclosure. 9 is a perspective view illustrating a state in which a protective cap of a battery pack to which a short range wireless communication antenna is mounted according to various embodiments of the present disclosure is deleted. 8 and 9, a configuration of a battery pack according to various embodiments of the present disclosure will be described.

Although already described, one surface of the battery pack 41 is divided into a first region and a second region. The first area refers to an area where the near field communication antenna 43 is disposed and is a lower area. The second area is an area where the near field communication antenna 43 is not disposed, and is a battery area and an upper area. The second area includes one or a plurality of connection antennas 430 for electrically connecting the short range wireless communication antenna 43 to a battery connector. The connection antenna 430 extends from the antenna 43 toward the battery protection circuit board 414 (shown in FIG. 9). An end of the connecting antenna 430 is connected to the battery protection circuit board 414 and is electrically connected to the battery connector 46 (shown in FIG. 6) by the battery protection board 414. The battery protection circuit board 414 to which the connection antenna 430 is connected is protected by being wrapped by the battery protection board cap 412. Since the connection antenna 430 does not overlap the heat dissipation connector 450, the connection antenna 430 does not affect antenna performance deterioration. The connection antenna may be configured in various shapes and patterns. The connection antenna 430 shown in FIG. 8 is approximately linear and extends in the longitudinal direction of the periphery of the battery pack 43, thereby providing the battery protection circuit board. Although electrically connected to 412, the present invention is not limited thereto, and may be configured in various shapes as long as it can be connected to the battery connector. Of course, if the shape of the connection antenna 430 is deformed, the shape of the heat dissipation connection may be changed.

FIG. 10 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 10 (a) illustrates a state in which a battery pack is removed by removing a battery cover of the mobile communication terminal. 10 (b) is a view showing the inner surface of the removed battery cover. 11 is a perspective view illustrating a battery pack equipped with a short range wireless communication antenna device according to various embodiments of the present disclosure. In the description of the radiation short-range wireless communication antenna according to various embodiments of the present disclosure with reference to FIGS. 10 and 11, the description of the duplicated configuration is omitted in comparison with the radiation short-range wireless communications antenna illustrated in FIGS. 8 and 9. do. 10 and 11 are the same as those shown in FIGS. 8 and 9 except for the connection antennas 530 and 531 and the heat dissipation connection unit 550, and thus, various embodiments of the present disclosure may be used. The mobile communication terminal will be described mainly based on the configuration of the connection antenna and the heat dissipation connection.

The connecting antenna extending from the antenna 53 mounted in the first area (lower area) of the factory pack 51 is connected to the battery connector 56 by crossing the second area 510 in the vertical direction and the horizontal direction. do. The connecting antenna is finally directed to the battery connector 56 along the periphery of the second region 510, and includes a vertical connecting antenna 530 and a horizontal connecting antenna 531. The two connection antennas 530 and 531 may extend in a manner of being disposed close to the horizontal side and the vertical side of the battery pack second region 510 in order to enlarge the mounting area of the heat dissipation connection unit 550. An end of the lateral connection antenna 531 is connected to a battery protection circuit board (shown in FIG. 8) and electrically connected to the battery connector 56.

The heat dissipation part 55 includes a heat dissipation connection part 550 that does not overlap the antenna 530 and the connection antenna 531 mounted in the second area. The heat dissipation connector 550 extends in the horizontal direction from the heat dissipation unit 55 to transfer heat transferred from the heat generating source 56 to the region 510 in which the antenna mounted on the battery pack and the connection antenna are not mounted. That is, the heat dissipation connection part 550 absorbs heat from the heat generating source 56 and emits heat to the region 510 of the battery pack. The size of the heat dissipation connection is slightly smaller than the heat dissipation connection shown in FIG. This is due to the connecting antenna. As a result, the heat dissipation connector 550 absorbs the heat transferred from the heat generating source 54 and transmits heat to the region 510 where the connection antenna of the relatively low temperature battery pack is not disposed, thereby generating the heat generating source 54. Will lower the temperature.

12 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 12A illustrates a state in which a battery pack of the mobile communication terminal is removed and a battery pack is installed. 12 (b) is a view showing the inner surface of the removed battery cover. 13 is a perspective view illustrating a battery pack to which a short range wireless communication antenna device according to various embodiments of the present disclosure is mounted. 12 and 13, in describing the heat dissipation short-range wireless communication antenna according to various embodiments of the present disclosure, a description of a duplicated configuration is omitted in comparison with the heat dissipation short-range wireless communication antenna shown in FIGS. 8 and 9. do. 12 and 13 is the same as the configuration shown in Figs. 8 and 9, except for the connection antenna and the heat dissipation connecting portion, the mobile communication terminal according to various embodiments of the present invention The description will be made mainly on the configuration of the antenna and the heat dissipation connection unit.

The factory pack 61 has an upper surface 611, a lower surface 612, and a plurality of side surfaces 613. As described above, the short range wireless communication antenna 63 is mounted in the lower region of the battery pack upper surface 611. In order to connect the short range wireless communication antenna 63 to the battery connector, the antenna 63 may include a plurality of connection antennas. The connection antenna according to various embodiments of the present disclosure may include a first connection antenna 630 disposed on the top surface 611 of the battery pack, a second connection antenna 631 disposed on one side surface 613, and a bottom surface 612. ) May include third connection antennas 632 and 633. The first connection antenna 630 extends from an upper surface of the battery pack 611 at a corner of a short range wireless communication antenna. The second connection antenna 631 extends vertically downward from the first connection antenna 630 along the side surface 613. The third connection antennas 632 and 633 extend in the horizontal and vertical directions of the bottom surface of the second connection antenna 631, respectively. The vertical antenna 633 of the third connecting antenna is connected in the direction of the battery connector. Of the three connection antennas 530 and 531, an end of the third connection antenna 633 is connected to a battery protection circuit board (shown in FIG. 7) and electrically connected to the battery connector.

The heat dissipation part 65 may include a heat dissipation connection part 650 that does not overlap the antenna 63 and the first connection antenna 631. The heat dissipation connector 650 extends in the horizontal direction from the heat dissipation unit 65 to transfer heat transferred from the heat generating source 64 to an area 610 in which the antenna mounted on the battery pack and the connection antenna are not mounted. That is, the heat dissipation connection part 650 may absorb heat from the heat generating source 66 and emit heat to the region 610 of the battery pack. As a result, the heat dissipation connector 650 absorbs the heat transferred from the heat generating source 64 and transfers heat to the region 610 in which the connection antenna of the relatively low temperature battery pack is not disposed, thereby generating the heat generating unit 64. Can lower the temperature.

14 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 14A illustrates a state in which a battery pack of the mobile communication terminal is removed and a battery pack is installed. (B) is a figure which shows the inner surface of the removed battery cover. 15 is a perspective view illustrating a battery pack equipped with a short range wireless communication antenna device according to various embodiments of the present disclosure. In the description of the radiation short-range wireless communication antenna according to various embodiments of the present disclosure with reference to FIGS. 14 and 15, the description of the overlapped configuration is omitted in comparison with the radiation short-range wireless communications antenna illustrated in FIGS. 8 and 9. do. 14 and 15 are the same as those shown in FIGS. 8 and 9 except for the connection antennas 730, 73, and 732 and the heat dissipation connection unit 750, and thus, various embodiments of the present disclosure may be implemented. A mobile communication terminal according to an example will be described based on the configuration of the connection antenna and the heat dissipation connection unit.

The factory pack 71 has an upper surface 711, a lower surface 712, and a plurality of side surfaces 713. As described above, a short range wireless communication antenna 73 is mounted in the lower region of the battery pack upper surface 711. In order to connect the near field communication antenna 73 to the battery connector 76, the antenna 73 may include a plurality of connection antennas. The connection antenna according to various embodiments of the present disclosure may include a first connection antenna 730 disposed on the top surface 711, a second connection antenna 731 disposed on one side 713, and a bottom surface 712. ) May include a third connection antenna 732. The first connection antenna 730 extends laterally from the top surface 711 of the battery pack at the corner of the short range wireless communication antenna. The second connection antenna 731 extends vertically downward along the side surface 713 from the first connection antenna 730. The third connecting antenna 732 extends from the second connecting antenna 731 toward the battery protection circuit board in the longitudinal direction of the bottom surface thereof. Of the three connection antennas 730, 731, and 732, an end portion of the third connection antenna 732 may be connected to a battery protection circuit board (shown in FIG. 7) and electrically connected to the battery connector 76.

The heat dissipation unit 75 may include a heat dissipation connection unit 750 that does not overlap the antenna 73 and the first connection antenna 730. The heat dissipation connector 750 extends in the horizontal direction from the heat dissipation unit 75 to transfer the heat transferred from the heat generating source 74 to the region 710 in which the antenna mounted on the battery pack and the connection antenna are not mounted. That is, the heat dissipation connection part 750 absorbs heat from the heat generating source 74 and emits heat to the region 710 of the battery pack. As a result, the heat dissipation connector 750 absorbs the heat transferred from the heat generating source 74 and transfers heat to the region 710 in which the connection antenna of the relatively low temperature battery pack is not disposed, thereby generating the heat generating source 74. Can lower the temperature.

FIG. 16 is a front view of a mobile communication terminal (hereinafter, referred to as a terminal body) equipped with a short range wireless communication antenna according to a conventional embodiment, and FIG. 16A illustrates a battery cover 82 of a mobile communication terminal. Is removed to show a state in which the battery pack 81 is mounted, and FIG. 16B illustrates a heat dissipation unit 85 mounted on the inner surface 820 of the removed battery cover 82.

As shown in FIG. 16A, when the battery cover 82 is removed from the terminal body 80, the battery pack 81 is mounted. The battery pack 81 is seated in a battery slot provided in the inner surface 800 of the terminal body, and is electrically connected to the battery connector 86 to supply power. In the upper region of the battery pack 81, a heat source 84, for example, an AP, is mounted on a main board (not stacked in the bottom of the terminal), for example, an AP, and an upper portion of the battery pack 81 is a camera ( c) and the LED provided in the flash f are located. As an example of the heat generating source 84, for example, may be the AP 84, the LED (f), etc., but relatively the AP 84 may be regarded as the highest heat generating source inside the terminal body. . Therefore, the location where the AP 84 is located in the terminal 80 is the hottest area and can be regarded as a hot spot.

Specifically, the heat generating source 84 is positioned in an upper region of the center around the center of the terminal 80, and the battery pack 81 is located in the lower region of the terminal 80 so as to be spaced apart from the heating source 84. The heat generating source 84 may be located at a position close to the battery connector 86 at approximately the center of the upper region of the terminal body 80. The heating source 84 should be located close to the camera c, the flash f or the battery connector 86 in the upper region, so that the interworking and the power supply are easy. 84 is preferably located in close proximity to the battery connector 86. In addition, the camera (c), flash (f), etc. may be disposed not far from the heat generating source (84).

On the other hand, in order to provide an antenna function to the terminal, the antenna 83 and the heat radiating unit 85 may be configured. When the antenna 83 is a near field communication (NFC) antenna, the near field communication antenna 83 is provided at a predetermined position on an upper surface of the battery pack 81. When the short range wireless communication antenna 83 is provided in the battery pack 81, the short range wireless communication antenna 83 is mounted in the vicinity of the heat generating unit 84. This is for the short range wireless communication antenna 83 to be located at the center of the bottom surface of the terminal 80. The reason for locating the short range wireless communication antenna 83 in the center is considering the user's ease of use.

The heat dissipation unit 85 may be mounted on an inner surface of the battery cover 82 (a surface facing the terminal bottom 800 when combined with a terminal) 820 to lower the temperature of the heat generating unit 84. When the battery cover 82 is coupled to the bottom surface 800 so as to face the heat dissipation portion 85, the heat dissipation portion 85 is disposed to overlap with the heat dissipation source 84, so that the heat dissipation portion 85 is disposed away from the heat dissipation portion 84 by the heat dissipation portion 85. By dissipating heat, the temperature of the heat generating source 84 is lowered, and the terminal temperature is lowered overall. On the other hand, since the heat dissipation portion 85 includes a metallic material having excellent thermal conductivity, for example, copper (Cu), the heat dissipation portion 85 is disposed not to overlap with the antenna 83. If the heat radiating portion 85 is arranged to overlap with the antenna 83, the performance of the antenna 83 is degraded. However, the problem of heat generation of the terminal body 80 is more dissatisfied from users, and thus it is necessary to lower the temperature of the heat generating source 84 further, but the heat dissipation portion 85 attached to the battery cover 82 There is a limit to expanding the area. In the future, as the terminal 30 is highly specified, the heat generation problem of the AP will become more prominent, and it is true that there is a risk of seriously affecting the performance of the mobile communication terminal.

17 is a plan view illustrating a mobile communication terminal equipped with a short range wireless communication antenna according to various embodiments of the present disclosure, and FIG. 17A illustrates a state in which a battery pack of the mobile communication terminal is removed. (B) is a figure which shows the inner surface of the removed battery cover.

As shown in FIG. 17, the battery pack 91 is seated in a battery slot provided on the bottom surface of the terminal body and electrically connected to the battery connector 96 to supply power to the terminal. In the upper region of the battery pack 91, a heating source 94 mounted on a main board B (shown in FIG. 6), for example, an AP is positioned, and an upper portion of the battery pack 91 includes a camera c, The LED lamp provided in the flash f is located. The heating source 94 may be, for example, an AP, an LED, a camera element, or the like, but may be regarded as a heating source because the AP is relatively hot. Therefore, the place where the AP is located in the mobile communication terminal 90 is the hottest area and can be regarded as a hot spot.

A heat source 94 is positioned in an upper region around the center of the terminal body 90, and a battery pack 91 is positioned in the lower region to be spaced apart from the heat source 94, and a camera c and an LED are located in an upper region. Or a card socket. The heat generating source 94 may be located near the battery connector 96 in the upper region of the terminal body. The heating source 94 should be located close to the camera (c) or flash (f) or the battery connector 96 in the upper region to facilitate interworking with each other, and to easily supply power, preferably the main The heating unit 94 on the board is preferably disposed in close proximity to the power-intensive electronic components.

In addition, in order to provide an antenna function to the mobile communication terminal 90, an antenna 93 and a heat dissipation unit 95 may be configured. The antenna 95 mounted on the mobile communication terminal 90 is thin, and may be a near field communication (NFC) antenna made of a flexible material or a wireless charging antenna. When the antenna 93 is a short range wireless communication antenna, the short range wireless communication antenna may or may not be provided on the top surface of the factory pack 91. When the near field communication antenna 93 is not provided in the factory pack 91, the near field communication antenna 93 may be provided in a predetermined region of the bottom surface 900 of the terminal body 90.

According to various embodiments of the present disclosure, when the short range wireless communication antenna 93 is provided in the battery pack 91, the short range wireless communication antenna 93 may be disposed at a distance from the heat generating unit 94. That is, when the mounting position of the battery pack 91 is divided into a first region and a second region, a short range wireless communication antenna 43 is disposed in the first region of the battery pack 91. The first region may be located relatively far from the heat generating source 94 than the second region, and the second region may be located relatively near to the first region from the heat generating source 94. The antenna 93 is disposed in the first region, and further includes a connecting antenna 930 to be connected to the battery connector 96.

As shown in FIG. 17B, a heat dissipation unit 95 may be attached to an inner surface of the battery cover 92 to lower the temperature of the heat generating unit 94. When the battery cover 92 is coupled to the terminal body 90, the heat dissipation unit 95 is disposed to overlap with the heat generating source 94, and thus the heat dissipation unit 95 is arranged in a direction away from the heat generating source 94 by the heat dissipating unit 95. By emitting the lowering of the temperature of the heat generating source 94, lowering the overall temperature of the terminal body (90). On the other hand, since the heat dissipation part 95 includes a metallic material having excellent thermal conductivity, for example, copper, the heat dissipation part 95 is disposed so as not to overlap with the antenna 93, and thus, the heat dissipation part 95 has a relatively low temperature region compared to the heat generating source 94. A heat dissipation connector 950 may be provided to transfer heat. An example of the low temperature region may be an area 910 that does not overlap the connection antenna 930 of the battery pack 91. That is, the heat dissipation connector 950 absorbs heat transferred from the heat generating source 94 and discharges the heat to the region 910 of the battery pack having a relatively low temperature. The heat dissipation connection unit 950 is made of the same material as the heat dissipation unit 95 and is configured in a sheet shape. The heat dissipation part 45 and the heat dissipation connection part 450 include a graphite material. By the heat dissipation connection unit 950, the heat generating source 94 is lowered in temperature.

Claims (33)

In the mobile communication terminal,
A display module;
Rear cover;
An inner support structure disposed between the display module and the rear cover and including a first surface facing the display module and a second surface facing in the opposite direction to the display module;
A first heat dissipation sheet disposed between the first surface of the support structure and the display module;
A printed circuit board positioned between the first heat dissipation sheet and the first surface of the support structure; And
And a second heat dissipation sheet disposed between the second surface and the rear cover of the support structure. The printed circuit board of claim 1, wherein the printed circuit board includes a heating element.
The second heat dissipation sheet includes a portion formed at a position corresponding to the heating element. The method of claim 2, wherein the support structure comprises a space containing a metal pattern or a component containing at least one metal pattern,
And the second heat dissipation sheet extends from the portion so as not to overlap at least with a position corresponding to the metal pattern. The mobile communication terminal of claim 3, wherein the at least one metal pattern included in the support structure comprises an antenna pattern. The mobile communication terminal of claim 3, wherein the component comprises a battery, and the metal pattern in the battery comprises an antenna pattern. The mobile communication terminal of claim 1, wherein the second heat dissipation sheet is attached to or embedded in a rear cover. The method of claim 1, wherein at least one of the first heat dissipating sheet or the second heat dissipating sheet includes natural graphite particles, compressed particles of exfoliated graphite, and artificial graphite particles. A mobile communication terminal comprising one or more of graphite particles, copper, or graphene particles, CNTs, and graphene hybrids. The mobile communication terminal of claim 1, wherein the rear cover is formed of a removable cover. In the protective cover of a mobile communication terminal,
A first cover covering a first surface of the mobile communication terminal; And
A second cover connected to the first cover and provided to the second surface of the mobile communication terminal when the protective cover is coupled to the mobile communication terminal, the second cover configured to cover a battery accommodation space of the mobile communication terminal; ,
The second cover includes a heat dissipation sheet covering a portion of one surface of the second cover. The cover of claim 9, wherein the heat dissipation sheet has an L shape. The cover of claim 9, wherein the heat dissipation sheet has a T shape. In mobile electronics,
A display module;
Internal support structure;
An inner bracket positioned between the display module and the inner support structure, the inner bracket including a first surface facing the display module and a second surface facing the display module;
A first heat dissipation sheet disposed between the first surface of the inner bracket and the display module;
A printed circuit board positioned between the second surface of the inner bracket and the support structure; And
And a second heat dissipation sheet disposed between the inner printed circuit board and the inner support structure. In the mobile communication terminal,
A heat source disposed in the terminal body;
An antenna disposed in the main body of the terminal and disposed at a position spaced apart from the heating source; And
A heat dissipation unit disposed in the main body, the heat dissipation unit including a heat dissipation unit overlapping the heat generating source, not overlapping the antenna, and having a heat dissipating connection unit configured to transfer heat of the heat generating source in a direction of a region that is relatively lower than the heat generating source; Communication terminal. The mobile communication terminal of claim 13, wherein the heat generating source comprises an AP. The mobile communication terminal of claim 13, wherein the antenna comprises a near field communication antenna or a wireless charging antenna. The mobile communication device according to any one of claims 14 to 15, wherein the heat dissipation connection part is made of the same material as the heat dissipation part, and has a material that absorbs heat transmitted from the heat generating source and emits the heat toward a relatively low temperature region. terminal. In the mobile communication terminal,
A heat source disposed in the terminal body;
A battery pack configured to be detachable from the terminal body and disposed at a position spaced apart from the heat source;
An antenna mounted in the battery pack first region;
A battery cover detachable from the terminal body; And
The battery cover is disposed on the battery cover, and overlaps the heating source, and does not overlap the antenna, and transmits heat from the heating source toward a second region of the battery pack that is relatively lower than the heating source and does not have the antenna. A mobile communication terminal comprising a heat dissipation unit having a heat dissipation connection unit. 18. The mobile communication terminal of claim 17, wherein the first region is located relatively far from the heat generating source than the second region, and the second region is located relatively near from the heat generating source compared to the first region. The mobile communication terminal of claim 17, wherein the heat dissipation connection unit is disposed to overlap the second area of the battery pack. 19. The mobile communication terminal of claim 18, wherein the antenna includes one or a plurality of connection antennas electrically connected to a battery connector across the second area, and the connection antennas are not overlapped with the heat dissipation connection portion. The mobile communication terminal of claim 18, wherein the antenna includes one or a plurality of connection antennas electrically connected to a battery protection circuit board across the second area, and the connection antennas are disposed not to overlap with the heat dissipation connection portion. . 22. The mobile communication terminal according to any one of claims 20 and 21, wherein the connection antenna is configurable in one or more on the top, side, or bottom of the battery pack. The mobile communication terminal of claim 18, wherein the antenna and the connecting antenna are configured of a thin NFC antenna or a wireless charging antenna of a flexible material. The mobile communication terminal of claim 17, wherein the heat dissipation connection part is made of the same material as the heat dissipation part, and has a sheet shape, and includes a material that absorbs heat transferred from the heat generating source and discharges the heat toward the battery pack. The mobile communication terminal of claim 17, wherein the heat generating source comprises an AP. The mobile communication terminal of claim 18, wherein the heat generating source is disposed not to overlap with the battery pack. In the battery cover of a mobile communication terminal comprising an antenna,
A heat dissipation unit provided on one surface of the heat dissipation unit so as not to overlap with the antenna and dissipating heat transferred from the mobile communication terminal to a relatively low temperature first region; And
And a heat dissipation connection part extending from the heat dissipation part and dissipating heat transferred from the mobile communication terminal to a second area in a direction different from the first area. 28. The battery cover of claim 27, wherein the first region is in a first direction away from the transferred heat. 29. The battery cover of claim 28, wherein the second region is located in a second direction away from the transferred heat and comprises a region in which a battery is mounted. In the battery pack detachable from the mobile communication terminal,
A battery pack divided into first and second regions;
An antenna provided in the first region;
One or a plurality of connecting antennas extending from the antenna and crossing the second area; And
And a battery protection circuit board to which an end of the connection antenna is connected. 31. The battery pack of claim 30 wherein an end of the connecting antenna is wrapped by a battery protection circuit cap. The battery pack of claim 30, wherein the top surface of the battery pack is divided into first and second regions. 31. The battery pack of claim 30, wherein the connection antenna is connected to the battery protection circuit board by using an upper surface, a side surface, or a lower surface of the battery pack.

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